Flashing and jacket for vent pipes



Jan. 5, 1943. P. s. HAUSER FLASHING AND JACKET FOR VENT PIPES Filed Oct. 12, 1940' m /N|/ENTOE PETER 6. HA 155E m,

ATTOENE Patented Jan. 5, 1943 "mes FLASHING AND JACKET FOR VENT PIPES Peter S. Hauser, Minneapolis,

Application October 12, 1940, Serial No. 360,872

' 2 Claims. ,gcl. 285 31) This invention relates to an improved flashing and jacket of the character usually employed in connection with vent pipes which project through a roof, and more particularly to the type wherein the flashing may be manipulated to vary the in- 7 clination thereof with respect to the axisof-the jacket, whereby the device may be used for roofs of different pitch.

An object of the present invention is to provide a combination flashing and jacket of the character described, comprising a flashing formed from a blank of metal and having a slit in one side thereof, whereby in the formation of the body of the flashing, a portion of one of the side walls thereof and the end wall are overlapped jacket, whereby the flashing may readily be adapted for roofs of different pitch without altering the construction of the flashing.

A further object is to provide a combination flashing and jacket inseparably secured together H to provide a unitary structure, and the main body of the flashing comprising opposed side walls connected by a s'emi-cone-shaped end wall which merges into said end walls in a smooth unbroken curved line, thereby providing such a device which is extremely neat in appearance.

A further object is to provide a flashing of the character described, which is extremely simple and inexpensive to manufacture and which may be quickly adjusted to roofs of different pitch.

Other objects of the invention will appear from the following description and accompanying drawing and will be pointed out in the annexed claims.

In the accompanying drawing there has been disclosed a structure designed to carry out the various objects of the invention, but it is to be understood that the invention is not confined to the exact features shown as various changes may be made within the scope of the claims which follow.

In the drawing:

Figure 1 is a vertical'sectional view showing a portion of a roof with the flashing positioned thereon;

Figure 2 is a view looking at the flashing from the inside thereof, as indicated by the arrow in Figure 1;

Figure 3 is a sectional plan view on the line 3-3 of Figure 1;

Figure 4 is a view similar to Figure 1 but showing the flashing positioned on a roof having a smaller pitch;

Figure 5 is a sectional plan view on the line 5-5 of Figure 4, showing the peripheral flange of the flashing expanded to adapt the flashing for a roof having a smaller pitch; and

Figure 6 is an enlarged detail sectional view on the line 6-6 of Figure 4, showing the marginal edge of the overlapped wall portions bent-inwardly to provide a substantially leak-proof joint between said overlapped wall portions.

In the selected embodiment of the invention here shown, there is illustrated in Figure 1, for purposes of disclosure, a portion of a roof, generally designated by the numeral I having an opening 2 therein. 1

The flashing herein disclosed is shown comprising a body portion, generally designated by the numeral 3, comprising opposed side walls i and 5, a curved end wall 6 which is substantially semi-cone shaped in configuration, and a top wall I which is relatively flat and is triangular in shape, as best shown in- Figure 2. i

The top wall 7 is provided with an opening adapted to receive the lowerend portion of a suitable jacket member 8, which extends upwardly from the top wall I and is adapted to receive the usual vent pipe 9, as shown in Figure 4. The jacket member a'also extends below the top wall I and into the opening 2 in the roof.

An outer jacket member I I is fitted over the inner member 8, above the top wall 1, whereby the upper end of the jacket may be extended to accommodate the length of the vent pipe 9, as will readily be understood by reference to Figure 1. A suitable cap I2 is shown secured to the upper end of the outer jacket member I I, and is adapted to receive the upper end of the vent pipe. The top wall I3 of the cap I2 is provided with a suitable aperture M, whereby the inner marginal edge of the wall I3 may readily be bent down wardly into the upper end of the vent pipe, as shown in Figure 4. The cap I2 is usually made from a soft, readily bendable material. A clamping band I5 is shown encircled about the vertical wall of the cap to secure the upper jacket member II to the vent pipe 9.

As shown in Figures 2 and 3, the side walls 4 and 5 of the flashing are provided with bottom flanges I 6, and the end wall 6 with a similar flange I I. The flange I'I forms a continuation of the flanges I 6 of the side wall 5, as shown in Figures 2 and 3. The blank from which the flashing is formed is slitted whereby the side wall 4 is provided with a marginal edge portion l8, and the end wall 8 with a marginal edge portion l9, as shown in Figure 2. The marginal edge portions l8 and ll) of the side wall 4 and end wall 6 are arranged in overlapped relation, as shown in Figure 2.

The top wall I is provided with a relatively wide upwardly directed flange 2| adapted to be inserted under the usual shingles or covering of the roof, as is well understood. The flange 2! is connected to the top wall I along a bend line 23, shown in Figures 1 and 2. The top wall I, which is substantially triangular in form, is defined by the line 23 and corners 24 which connect the side walls 4 and 5 to the top wall. The corners 24 between the top and side walls meet at a central point, indicated at 25, and the marginal edge portions l8 and IQ of the side wall 4 and end wall 6, respectively, also radiate from the central point 25.

By constructing the flashing as above described, it will readily be noted that the angle of the plane in which the flanges l6, l1 and 2| are disposed, may readily be varied with respect to the axis of the jacket by simply changing the degree of overlap between the marginal edge portions l8 and IQ of the side and end walls 4 and 6, respectively, as shown in Figures 2 and 3. When the flashing has been adjusted to properly position the jacket with respect to a given roof, the flanges l6 and I! are secured to the roof by suitable securing elements, such as nails, or tacks, whereby the flashing will retain its position with the jacket vertically disposed, as shown in Figures 1 and 4.

To render the joint between the overlapped wall portions l8 and I9 substantially water-tight, the marginal edges l8 and ll! of said walls are preferably bent, as shown in Figure 6, whereby said joint is rendered substantially water-proof to prevent moisture from entering the body of the flashing and the opening 2 in the roof.

When the flashing is secured in position on a roof, it will present a very neat appearance, because the rounded end wall 6 merges into the side walls 4 and 5, to provide a smooth, unbroken wall surface. The novel flashing and jacket herein disclosed has proven very satisfactory and practical in use, as it may readily and quickly be adjusted for roofs of different pitch by simply varying the degree of overlap between the wall portions l8 and I9, which is a much simpler operation than it is to bend or straighten gussets, such as are now commonly provided at the corners of conventional flashings now in common use, such as lead.

I claim as my invention:

1. A flashing constructed as a unitary structure from a blank of sheet material and having its central portion pressed outwardly to form a hollow body comprising a top wall, opposed side walls, and an end wall, a vertically disposed vent pipe jacket secured to the top wall, all of said walls having their lower edges disposed in a common plane and adapted to be seated on an inclined roof, and the end wall secured to one of said side walls and with a portion of said end wall disposed in overlapping relation with a portion of the other of said side walls, whereby the flashing may be expanded or contracted at its base to vary the inclination of said lower edges with respect to the axis of the jacket in adapting said flashing to roofs of varying pitches.

2. A roof flashing constructed as a unitary structure from a blank of sheet material and having its central portion pressed outwardly to form opposed side walls, a semi-conical end wall, and a top wall which is substantially horizontally disposed, a vertically disposed vent pipe jacket secured in leak-tight relation in an opening provided in said top wall, said semi-conical end wall being integrally formed with one of said side walls and having a portion thereof overlapping a portion of the other of said side walls and relatively movable with-respect thereto, all of said walls having marginal flanges disposed in a common plane adapted to be seated against a roof, a relatively wide upwardly directed flange secured to said flashing structure and disposed in the plane of said wall flanges and adapted to be inserted beneath the roof covering, the overlapping portions of said side and end walls providing for expansion and contraction of the unitary flashing structure, thereby to vary the angle between said marginal flanges and the axis of the vent pipe jacket in adapting said flashing to roofs of different pitches without cutting and Without the use of special tools.

PETER S. HAUSER. 

